Section R105.5, Expiration, is hereby deleted in its entirety and the following provisions shall be substituted therefor:

Every permit issued shall become invalid unless the work authorized by such permit is commenced within 180 days after its issuance, or if the work authorized by such permit is suspended, or abandoned or if no inspections have been performed for a period of 180 days after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated.

Any work authorized by a permit regulated by this code, or previous editions of this code, and administered by the building official which involves the construction or alteration of an exterior building component, assembly or finish material shall be fully finished and completed for permanent outdoor exposure within 24 months of the date of issuance of such permit. Areas involved may include, but are not limited to, foundations, wall and roof framing, sheathing, siding, fenestration, and roof coverings. Failure to comply with the preceding specified time period shall constitute a violation of this code, and the building official is authorized to serve a notice of violation on the permit holder and property owner. If the notice of violation is not complied with in the time prescribed by such notice, the building official is authorized to revoke the building permit and request the legal counsel of the jurisdiction to institute the appropriate proceeding at law to correct or abate such violation.